I bought these thinking it would spare me cutting open tennis balls and wrestling w/ them to get them on the walker legs. First day, GREAT! Fairly easy to install, but, the fuzzy part was gone in 2 weeks and had to be replaced. My tennis balls at least lasted longer.

Best Answer:Thank you for your question. They are safe for wood floors, however, they will need to be changed out eventually after they wear out to avoid damage or accidents.We hope this information will be of help to you.

I use the blue walker tennis balls both inside and outside, Once the soft part wears away from the bottom of the ball it needs to be changed, because the walker leg will come through and that can scrape the floor.